Red Bank is an unincorporated community and census-designated place (CDP) in Lexington County, South Carolina, United States. The population was 9,617 at the 2010 census, up from 8,811 at the 2000 census. It is part of the Columbia, South Carolina Metropolitan Statistical Area.
Geography
Red Bank is located just east of the center of Lexington County and it is bordered to the north by Lexington, the county seat, and to the south by the White Knoll CDP. South Carolina Highway 6 (S. Lake Drive) is the main road through town, leading north to the center of Lexington and south to Edmund. Platt Springs Road (South Carolina Highway 602 east of SC-6) forms the border between Red Bank and White Knoll. Highway 602 leads northeast to West Columbia.
According to the United States Census Bureau, the Red Bank CDP has a total area of , of which are land and , or 1.85%, are water. Red Bank Creek, an east-flowing tributary of Congaree Creek and part of the Congaree River watershed, passes just south of the original town center. Crystal Lake and Saxe-Gotha Millpond are two small reservoirs impounding the creek.
Demographics
2020 census
As of the 2020 census, Red Bank had a population of 10,924. The median age was 37.4 years. 23.7% of residents were under the age of 18 and 13.9% of residents were 65 years of age or older. For every 100 females, there were 96.1 males, and for every 100 females age 18 and over there were 92.4 males age 18 and over.
100.0% of residents lived in urban areas, while 0.0% lived in rural areas.
There were 4,289 households, including 3,035 families. Of all households, 32.0% had children under the age of 18 living in them. Of all households, 47.0% were married-couple households, 18.0% were households with a male householder and no spouse or partner present, and 27.4% were households with a female householder and no spouse or partner present. About 25.9% of all households were made up of individuals and 9.3% had someone living alone who was 65 years of age or older.